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Finding the Fourth Proportional to 77,052.80, 115,600.80 and 37,611.20

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Solution

The fourth proportional to 77,052.80, 115,600.80 and 37,611.20 is: 56,427.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,052.80 : 115,600.80 = 37,611.20 : x
  2. Step 2: Convert to fraction form
    77,052.80/115,600.80 = 37,611.20/x
  3. Step 3: Cross multiply
    77,052.80x = 115,600.80 × 37,611.20
  4. Step 4: Simplify right side
    77,052.80x = 4,347,884,808.96
  5. Step 5: Solve for x
    x = 4,347,884,808.96/77,052.80
  6. Step 6: Final answer
    x = 56,427.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.